That makes zero sense…
So a dracthyr can’t be a warrior because it’s an old class but they can be a bard, Necro, tinker, or w/e cuz it’s new???
The point I’m making is that lore wise, some dracthyr might be inspired by their new allies to pursue other classes…
Lore figures have changed classes many times before
Illidan went from mage to DH
Arthas from pally to DK
Thrall from war to sham
Liadrin/turalyon from priest to paladin
Guldan from sham to lock
Etc etc